Koji: expose image output metadata in build extra metadata

Expose the extra metadata information for each image output stored in
`ImageExtraInfo` also in the build extra metadata. The extra metadata
for each image is nested under key corresponding to the image filename.

Extend the Koji test case to check information in the buildinfo output
and specifically check for all expected metadata in the build Extra
metadata field.

Signed-off-by: Tomáš Hozza <thozza@redhat.com>

test/cases/koji.sh

@@ -21,6 +21,9 @@ CLOUD_PROVIDER_AWS="aws"
 CLOUD_PROVIDER_GCP="gcp"
 CLOUD_PROVIDER_AZURE="azure"
 
+# define the default cloud provider to test for
+CLOUD_PROVIDER="none"
+
 #
 # Test types
 #
@@ -109,6 +112,60 @@ fi
 
 trap cleanups EXIT
 
+# Verify that all the expected information is present in the buildinfo
+function verify_buildinfo() {
+    local buildinfo="${1}"
+    local target_cloud="${2:-none}"
+
+    local extra_build_metadata
+    # extract the extra build metadata JSON from the output
+    extra_build_metadata="$(echo "${buildinfo}" | grep -oP '(?<=Extra: ).*' | tr "'" '"')"
+
+    # sanity check the extra build metadata
+    if [ -z "${extra_build_metadata}" ]; then
+        echo "Extra build metadata is empty"
+        exit 1
+    fi
+
+    # extract the image archives paths from the output and keep only the filenames
+    local outputs_images
+    outputs_images="$(echo "${buildinfo}" |
+        sed -zE 's/.*Image archives:\n((\S+\n){1,})([\w\s]+:){0,}.*/\1/g' |
+        sed -E 's/.*\/(.*)/\1/g')"
+
+    # we build one image for cloud test case and two for non-cloud test case
+    if [ "${target_cloud}" == "none" ]; then
+        if [[ $(echo "${outputs_images}" | wc -l) -ne 2 ]]; then
+            echo "Unexpected number of images in the buildinfo"
+            exit 1
+        fi
+    else
+        if [[ $(echo "${outputs_images}" | wc -l) -ne 1 ]]; then
+            echo "Unexpected number of images in the buildinfo"
+            exit 1
+        fi
+    fi
+
+    local images_metadata
+    images_metadata="$(echo "${extra_build_metadata}" | jq -r '.typeinfo.image')"
+
+    for image in $outputs_images; do
+        local image_metadata
+        image_metadata="$(echo "${images_metadata}" | jq -r ".\"${image}\"")"
+        if [ "${image_metadata}" == "null" ]; then
+            echo "Image metadata for '${image}' is missing"
+            exit 1
+        fi
+
+        local image_arch
+        image_arch="$(echo "${image_metadata}" | jq -r '.arch')"
+        if [ "${image_arch}" != "${ARCH}" ]; then
+            echo "Unexpected arch for '${image}'. Expected '${ARCH}', but got '${image_arch}'"
+            exit 1
+        fi
+    done
+}
+
 # Provision the software under test.
 /usr/libexec/osbuild-composer-test/provision.sh jwt
 
@@ -201,7 +258,13 @@ fi
 
 greenprint "Show Koji task"
 koji --server=http://localhost:8080/kojihub taskinfo 1
-koji --server=http://localhost:8080/kojihub buildinfo 1
+
+greenprint "Show Koji buildinfo"
+BUILDINFO_OUTPUT="$(koji --server=http://localhost:8080/kojihub buildinfo 1)"
+echo "${BUILDINFO_OUTPUT}"
+
+greenprint "Verify the buildinfo output"
+verify_buildinfo "${BUILDINFO_OUTPUT}" "${CLOUD_PROVIDER}"
 
 greenprint "Run the integration test"
 sudo /usr/libexec/osbuild-composer-test/osbuild-koji-tests